Abstract #0750

Hybrid US/MR System for Real-Time Compensation of Breathing Motion Artifacts in Cardiovascular MRI at 3 Tesla

Daniel Giese¹, Andre Bongers², Jrgen Jenne², Matthias Gnther², Bernd Jung¹, Daniela Foell³, Maxim Zaitsev¹, Jrgen Hennig¹, Wim de Boer⁴, Michael Markl¹

¹Dept. of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany; ²mediri GmbH, Heidelberg, Germany; ³Cardiology and Angiology, University Hospital Freiburg, Freiburg, Germany; ⁴Institut fr Experimentelle Kernphysik, Universitt Karlsruhe (TH), Karlsruhe, Germany

Real-time prospective motion compensation in cardiac MR at 3 Tesla using B-mode ultrasound imaging in combination with a tracking algorithm is presented. We present first results of a hybrid MR/US system with low-latency real-time feedback to the MR sequence at 3 Tesla. In-Vivo results using single heartbeat gating show no disadvantages compared to single-heartbeat MR navigators.